We suggested that interactions of MMP-FasL for each person with COVID-19 may be personalized based on their blood profile and other factors, however, in the specific settings of our study which were derived from a real clinical sample of clinical COVID-19 patients, there was a strong interaction in the case of mild fever and hyponatremia which are commonly found in COVID-19 patients. The gene discussed is FASLG; the disease is COVID-19.